Boiler or water-heater.



Patented Agrl''gs, |902. D. M. &. A.'B. BURNS. 1

BILER'UR WATER HEATER.

(Application led May 5, 1902.) i

" 3 Sheet's-Sheet 2.

` o e @000cm Patented Aug.v i9, |902@l IJ.v M'.v& A. B; BURNS.

l BlLER 0R WATER HEATER..

(Application filed May 5, 1902:) (No Model.) l

3 Sheet's-Sheet 3.

we Nomus nena ca, Prinrounu.. wnmuuwn. m4 c.

UNITED STATES;

.PATENT OFFICE.

DAVID M. BURNS AND ALEXANDER B. BURNS, OF GREENBAY, WISCONSIN.

BOILER OR WATER-HEATER.

SPECIFICATION forming part of Y Letters Patent N o. r707,203, datedAugust 19, 1902.

Application filed May 5, 1902. .Serial No. 105,952. (No model.)

T0 all whom t may concern:

Be it known that we, DAVID M. BURNS and ALEXANDER B. BURNS, citizensofthe United States, and residentsof Greenbay, in the.` county of Brownanfd State of Wisconsin, havev invented certain .new and,y usefulImprovements in Boilers or Water-Heaters; and we do hereby declare thatthe following is a full, clear, and exact descriptionthereof.

Our invention has for its object to provide simple, economical, anddurable boilers and water-heaters that can be readilyfcleaned, saidinvention consisting in certain peculiarities of construction andcombination of partsparticularly set forth with reference lto theaccompanying drawings and subsequently claimed.

Figure 1 of the drawings represents a vertical section View of a boileror water-heater in accordance with our invention,'this y viewbeingindicated by line 1v1 in thethird ligure Fig. 2, a partly-sectionalelevation of the apparatus indicated by lines 2 2 in said third figure,and Fig. 3 a horizontal section'view indieated by lines 3 3 in thefirst-ligure.

Referring by letter to the drawings, Aindi'- cates a cylindrical shell,and B; O opposite angular boxes that are partly within the shell, theseboxes being of greater length than depth and located approximatelymidway between Builtin shell` A, central of same below boxes B C, is aiire-I the extremities of said shell.

chamber D, and ash-pit draft-'space is provided below the lire-chamber,the diameter of said lire-chamber being such that water-space.

Shell A is provided with/a lower inlet-nip-v ple e and upper`outlet-nipple f for connec` tion with pipes, and an upper manhole ofsaid shell isclosedby' a plate G on pin g, that ex- 5o tends through ayoke H and engages a clampnut h, the ends of the yoke being inopposition to the aforesaid shell.

Midway of its length box B is partitioned bysafbaftle-plate I, and asimilar plate J is arranged in box'O at a greater elevation. The

products of combustion pass from this com-l partment `through tiers ofilues L into the .lowerl major.. compartment of box O, then throughtiers of lues M into the upper comipartment of box B, and from thencethrough tiersfof'ilues N into the Vupper minor compartment of box 0, oneend of thiscompartmentfbeing lopen and connected by'a pipe P orotherwise with a smoke-stack.

From the foregoing it-wil1 be understoodv `that waterin shell A isaround and over the lire-chamber, the pipes K, iues L M N, and so muchof the boxesB O as extend into said shell 'being submerged, whereby avery con- As'iderable-radiating-surface is exposed to said water torapidly heat the same, the products of combustion being utilized to thebest advantage. I

With the exception of the doors, frames,

`nipples, manhole-closure, and fire-chamber grate the heaterisjpreferably of boiler-plate :in water-tight union. The doors B' C arepractically sides of boxes B C opposite -tert minals of the finesaforesaid and being swung open said boxes and flues may be readilycleaned. Access to pipes K is also possible through box B when the doorof same is open.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

l. A'boiler or water-heater comprising a cylindrical shell,boxes'extendingl intofthe shell and provided with outerdoors, ilues intiers connecting the boxes,a bafflelplate'dt viding one of the boxesinto approximately equal upper and lower compartments, asimilar plate inthe other` boxat a greater elevation than the plate aforesaid,"the minorupper compartment of the latter box being open `roo ssA f at one end forcommunication with a smokestack, a fire-chamber 0f less diameter thansaid shell built therein central of same, and pipes, leading from thefire-chamber into the lower compartment of the box aforesaid.

2. A boiler or Water-heater comprising a cylindrical shell, boxesextending into the shell and provided with outer doors, fines in tiersconnecting the boxes, a baflie-plate dividing one of the boxes intoapproximately equal upper and lower compartments, a similar plate in theother box at a greater elevation than the plate aforesaid, the minorupper Compartment of the latter box being open at one end forcommunication with a smoke-

